-81.52% is the change from 330 to 61
Calculation steps:
[( 61 - 330 ) ÷ 330] x 100 = -81.52%
Formula
Percentage change = [(61 - 330) / 330] x 100
Subtract the new number by the original number
61 - 330 = -269
-269 ÷ 330 = -0.8151515151515152
-0.8151515151515152 x 100 = -81.52%